s390/zcrypt: Validate length for CCA AES cipher key requests
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.2%
exploitation probability
0.2%top 94% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
s390/zcrypt: Validate length for CCA AES cipher key requests
cca_cipher2protkey() derives the copy length for the CPRB parameter
block directly from the length field in the key token. Reject the
request early if the token length exceeds the available space in the
parameter block.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/06afe425d5283b9764303de47f554da5a808ce8ahttps://git.kernel.org/stable/c/3859f630b674801a00bca39bc451f52288591f65https://git.kernel.org/stable/c/406b317ea2b501f6f5eca1264293c9399a73a778https://git.kernel.org/stable/c/4e500ecb6704d879f9c2417c2ed6faba595015cahttps://git.kernel.org/stable/c/4fc46deceda076d429ef3fab2ccf8d96629ebd23https://git.kernel.org/stable/c/7f9e5a3dbb14a9b321a1dfa30390402c673f82dchttps://git.kernel.org/stable/c/ad93a1f1a45652478c0cf4eb029114e03af57f3bhttps://git.kernel.org/stable/c/be037204e4f595e4bd2159acda146677a1dc6342